CN2194862Y - Speed-change transmission for bicycle - Google Patents
Speed-change transmission for bicycle Download PDFInfo
- Publication number
- CN2194862Y CN2194862Y CN 94237082 CN94237082U CN2194862Y CN 2194862 Y CN2194862 Y CN 2194862Y CN 94237082 CN94237082 CN 94237082 CN 94237082 U CN94237082 U CN 94237082U CN 2194862 Y CN2194862 Y CN 2194862Y
- Authority
- CN
- China
- Prior art keywords
- chain
- drive sprocket
- driven flywheel
- bicycle
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Transmissions By Endless Flexible Members (AREA)
Abstract
The utility model relates to a speed-change transmission apparatus for bicycles, which is characterized in that the utility model is composed of two relatively independent transmission chains which are respectively installed at two sides of the frame of the bicycle, wherein, a transmission chain comprises a driving chain wheel, a chain and a driven flywheel, and the other transmission chain comprises a driving chain wheel, a middle chain wheel, a driven flywheel and a chain. The separation and combination of a ratchet pawl control the two transmission chains to respectively work to complete the change of high speed and low speed. The chain and the chain wheel of the apparatus can select standard components, and the utility model has low cost and convenient maintenance.
Description
The utility model relates to a kind of variable-speed drive device for bicycle.
Bicycle is one of the widely used traffic of China people and transportation means, in widely used bicycle, its driving device mostly adopts a drive sprocket, a driven flywheel and a chain that connects drive sprocket and driven sprocket are formed, that this driving device has is simple in structure, productive costs is low, be convenient to characteristics such as maintenance, but can not speed change, can't meet requirements low speed different purposes such as laborsaving grade and the requirement of different road surface, and existing variable speed bicycle, because its complex structure, thereby cost is higher, and is not easy to maintenance.
Task of the present utility model provides and a kind ofly makes bicycle both but low speed driving was laborsaving, can run at high speed again, and productive costs is low, maintains variable-speed drive device for bicycle easily.
Embodiment of the present utility model is: this variable-speed drive device for bicycle is made up of two messenger chains, and these two messenger chains are installed in two sides of vehicle frame respectively, a messenger chain that wherein is installed in vehicle frame one side is: be installed in the drive sprocket on the imput shaft, be installed in hind axle and put and have the driven flywheel of ratchet device and connect drive sprocket and the chain of driven flywheel; A messenger chain that is installed in the vehicle frame opposite side is: be installed in the drive sprocket on the imput shaft, be installed in the driven flywheel that hind axle put and had ratchet device, two intermediate chain wheels are installed between drive sprocket and driven flywheel, between drive sprocket and the intermediate chain wheel, be connected with chain between another intermediate chain wheel and the driven flywheel, by the rotation between realization drive sprocket of the opening and closing between ratchet and the drive sprocket and the imput shaft and fixing, connect firmly between two intermediate chain wheels, and be connected on bicycle luggage carrier and the vehicle frame by support.
In the messenger chain that the utility model is made up of drive sprocket, driven flywheel and chain, the diameter of drive sprocket is identical with the diameter of driven flywheel; In another messenger chain of forming by drive sprocket, driven flywheel, intermediate chain wheel and chain, identical in drive sprocket and two intermediate chain wheels with the diameter of driven that intermediate chain wheel of flywheel bonded assembly, and bigger than driven flywheel diameter, another intermediate chain wheel is identical with driven flywheel diameter in two intermediate chain wheels.
Because the utility model is to adopt two relatively independent messenger chains to form, its chain and sprocket wheel can be selected gauge member for use, therefore, only need that widely used not variable speed bicycle is done very little change and can realize the utility model, so productive costs is low, maintenance is convenient, and can realize high and low second gear speed.
An embodiment of the present utility model now is described in detail in detail in conjunction with the accompanying drawings.
Accompanying drawing 1 is shown the utility model schematic perspective view.
As shown in the figure, the utility model is made up of two relatively independent messenger chains, and one of them messenger chain comprises: be installed in drive sprocket ［ 14 ］, the chain ［ 13 ］ on the imput shaft ［ 1 ］ and be installed in the driven flywheel ［ 12 ］ that ratchet device was gone up and had to trailing wheel axle sleeve ［ 5 ］; Another messenger chain comprises: be installed in drive sprocket ［ 3 ］ on the imput shaft ［ 1 ］, be installed in intermediate chain wheel ［ 9 ］ on the support ［ 11 ］ and ［ 10 ］, be installed in trailing wheel axle sleeve ［ 5 ］ and go up and have the driven flywheel ［ 6 ］ of ratchet device and chain ［ 4 ］, ［ 8 ］; Drive sprocket ［ 3 ］ by and connect firmly in the opening and closing between the ratchet ［ 2 ］ on the imput shaft ［ 1 ］ and realize the rotation between drive sprocket ［ 3 ］ and the imput shaft ［ 1 ］ and connect firmly, trailing wheel axle sleeve ［ 5 ］ is connected with trailing wheel by steel wire, and is connected with vehicle frame ［ 15 ］ by hind axle ［ 7 ］; The diameter of drive sprocket ［ 3 ］, ［ 14 ］, intermediate chain wheel ［ 10 ］, driven flywheel ［ 12 ］ is identical, and bigger than driven flywheel ［ 6 ］ diameter, and intermediate chain wheel ［ 9 ］ is identical with the diameter of driven flywheel ［ 6 ］.
When ratchet ［ 2 ］ and drive sprocket ［ 3 ］ when separating, at this moment, drive sprocket ［ 3 ］ can rotate around imput shaft ［ 1 ］, its messenger chain is: manpower → imput shaft ［ 1 ］ → drive sprocket ［ 14 ］ → chain ［ 13 ］ → driven flywheel ［ 12 ］ → trailing wheel axle sleeve ［ 5 ］ → trailing wheel, realize that low speed is laborsaving this moment.
When ratchet ［ 2 ］ and drive sprocket ［ 3 ］ are closed, at this moment, realized connecting firmly between drive sprocket ［ 3 ］ and the imput shaft ［ 1 ］, its messenger chain is: manpower → imput shaft ［ 1 ］ → ratchet ［ 2 ］ → drive sprocket ［ 3 ］ → chain ［ 4 ］ → intermediate chain wheel ［ 9 ］ → intermediate chain wheel ［ 10 ］ → chain ［ 8 ］ → driven flywheel ［ 6 ］ → trailing wheel axle sleeve ［ 5 ］ → trailing wheel, realize running at high speed this moment.
Claims (2)
1, a kind of variable-speed drive device for bicycle, comprise drive sprocket, driven flywheel and chain, it is characterized in that this variable-speed drive device for bicycle is made up of two messenger chains, and these two messenger chains are installed in two sides of vehicle frame [15] respectively, and a messenger chain that wherein is installed in vehicle frame [15] one sides is: be installed in drive sprocket [14] on the imput shaft [1], be installed in trailing wheel axle sleeve [5] and go up and have the driven flywheel [12] of ratchet device and a chain [13] that connects drive sprocket [14] and driven flywheel [12]; A messenger chain that is installed in vehicle frame [5] opposite side is: be installed in the drive sprocket [3] on the imput shaft [1], be installed in trailing wheel axle sleeve [5] and go up and have the driven flywheel [6] of ratchet device, between drive sprocket [3] and driven flywheel [6], two intermediate chain wheels [9] and [10] are installed, chain [4] connects drive sprocket [3] and intermediate chain wheel [9], chain [8] connects intermediate chain wheel [10] and driven flywheel [6], drive sprocket [3] can rotate around imput shaft [1], by opening between ratchet [2] and the drive sprocket [3], close and realize the rotation between drive sprocket [3] and the imput shaft [1] and connect firmly, connect firmly between intermediate chain wheel [9] and [10], and be connected on bicycle luggage carrier and the vehicle frame [5] by support [11].
2, variable-speed drive device for bicycle according to claim 1, it is characterized in that drive sprocket ［ 3 ］, ［ 14 ］, intermediate chain wheel ［ 10 ］ is identical with the diameter of driven flywheel ［ 12 ］, and the diameter of driven flywheel ［ 6 ］ and intermediate chain wheel ［ 9 ］ is identical and littler than the diameter of drive sprocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94237082 CN2194862Y (en) | 1994-04-07 | 1994-04-07 | Speed-change transmission for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94237082 CN2194862Y (en) | 1994-04-07 | 1994-04-07 | Speed-change transmission for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2194862Y true CN2194862Y (en) | 1995-04-19 |
Family
ID=33844894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94237082 Expired - Fee Related CN2194862Y (en) | 1994-04-07 | 1994-04-07 | Speed-change transmission for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2194862Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108163131A (en) * | 2016-12-07 | 2018-06-15 | 徐夫子 | Damping transmission device |
| CN110550140A (en) * | 2018-05-30 | 2019-12-10 | 向可为 | Double-transmission middle-mounted motor |
-
1994
- 1994-04-07 CN CN 94237082 patent/CN2194862Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108163131A (en) * | 2016-12-07 | 2018-06-15 | 徐夫子 | Damping transmission device |
| CN108163131B (en) * | 2016-12-07 | 2020-07-03 | 徐夫子 | Damping transmission device |
| CN110550140A (en) * | 2018-05-30 | 2019-12-10 | 向可为 | Double-transmission middle-mounted motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |